Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: SNLOCA01XYX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
805-268 A Santa Maria CA 6529 T-MOBILE USA, INC. 740      
805-295 A Pismo Beach CA 6529 T-MOBILE USA, INC. 740      
805-296 A Paso Robles CA 6529 T-MOBILE USA, INC. 740      
805-310 A Santa Maria CA 5562 METROPCS, INC. 740      
805-324 A Santa Barbara CA 5562 METROPCS, INC. 740      
805-331 A Santa Barbara CA 5562 METROPCS, INC. 740      
805-391 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
805-406 A Santa Maria CA 6529 T-MOBILE USA, INC. 740      
805-431 A San Luis Obispo CA 6529 T-MOBILE USA, INC. 740      
805-519 A Arroyo Grande CA 6529 T-MOBILE USA, INC. 740      
805-539 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
805-554 A Santa Maria CA 6529 T-MOBILE USA, INC. 740      
805-574 A Arroyo Grande CA 6529 T-MOBILE USA, INC. 740      
805-635 A Paso Robles CA 6529 T-MOBILE USA, INC. 740      
805-636 A Santa Barbara CA 5562 METROPCS, INC. 740      
805-703 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
805-806 A San Luis Obispo CA 5562 METROPCS, INC. 740      
805-825 A Arroyo Grande CA 6529 T-MOBILE USA, INC. 740      
805-840 A Arroyo Grande CA 6529 T-MOBILE USA, INC. 740      
805-859 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
805-904 A Arroyo Grande CA 6529 T-MOBILE USA, INC. 740      
805-952 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
820-203 A Atascadero CA 6529 T-MOBILE USA, INC. 740      
820-206 A Paso Robles CA 6529 T-MOBILE USA, INC. 740      
820-225 A Guadalupe CA 6529 T-MOBILE USA, INC. 740   2024-03-03   
820-237 A Atascadero CA 6529 T-MOBILE USA, INC. 740   2025-02-10   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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